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United States Patent ( 19 ) to et al . 54 ) ONE-PACK TYPE HEAT PRECURABLE MOISTURE-CURING SEALANT COMPOSITION COMPRISING ISOCYANATE CONTAINING COMPONENT AND SILOXANE CONTAINING POLYOL
| Content Provider | Semantic Scholar |
|---|---|
| Author | Hayashi, Yukio |
| Copyright Year | 2017 |
| Abstract | (57) ABSTRACT One-pack type heat precurable moisture-curing sealant composition which comprises as the main component: (A) a urethane prepolymer having a content of an active free isocyanate group (NCO) of 1 to 6% by weight which is prepared by reacting a polyol and an excess amount of an aromatic polyisocyanate compound, (B) a vinyl polymer containing a siloxy group and having a number average molecular weight of 3,000 to 30,000, and (C) a partially inactivated solid polyisocyanate com pound, which can be precured at a comparatively lower tem perature within a short period of time and cured with moisture in air, is useful for adhering various parts in automobiles and the construction industries without temporary holding means. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://patentimages.storage.googleapis.com/27/bd/f6/57f1d1dec1a68b/US5304623.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Patent |